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IR3570BMTRPBF

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Infineon Technologies DC-DC Converters, QFN-40-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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IR3570BMTRPBF

Infineon Technologies · DC-DC Converters · QFN-40-EP(5x5)

IR3570BMTRPBF from Infineon Technologies, in a QFN-40-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RCSP input Loop 1 positive current-sense input (name only; the datasheet pages provided give no pin function text).
2 RCSM input Loop 1 negative current-sense input (name only; no pin function text provided).
3 VRDY2 output Loop 2 voltage-ready status signal (name only; no pin function text provided).
4 VSEN input Loop 1 output voltage sense input (name only; no pin function text provided).
5 VRTN input Loop 1 output voltage sense return (name only; no pin function text provided).
6 RRES passive Reference resistor pin (name only; no pin function text provided).
7 TSEN1 input Loop 1 thermistor temperature sense input (name only; no pin function text provided).
8 V18A power_out 1.8V analog supply pin (name only; no pin function text provided).
9 PWRGD/VRDY1 output Power-good / loop 1 voltage-ready status output (name only; no pin function text provided).
10 PWROK/EN_L2/INMODE input Multifunction pin: PWROK, loop 2 enable, or input mode select (name only; no pin function text provided).
11 VINSEN input Input voltage sense pin (name only; no pin function text provided).
12 VDDIO/SV_ADDR power_in Multifunction pin: Intel VDDIO or AMD SVI address (name only; no pin function text provided).
13 SVT/SV_ALERT bidirectional Multifunction pin: AMD SVT or Intel SVID ALERT (name only; no pin function text provided).
14 SV_CLK/VIDSEL1 bidirectional Multifunction pin: serial VID clock or VID select 1 (name only; no pin function text provided).
15 SV_DIO/VIDSEL0 bidirectional Multifunction pin: serial VID data I/O or VID select 0 (name only; no pin function text provided).
16 VRHOT_ICRIT# output VRHOT / ICRIT# thermal and current fault output (name only; no pin function text provided).
17 EN input Enable input (name only; no pin function text provided).
18 ADDR_PROT input Address / protection configuration pin (name only; no pin function text provided).
19 SM_DIO bidirectional I2C/SMBus/PMBus data line (name only; no pin function text provided).
20 SM_CLK input I2C/SMBus/PMBus clock line (name only; no pin function text provided).
21 PWM1 output Loop 1 phase 1 PWM output (name only; no pin function text provided).
22 PWM2 output Loop 1 phase 2 PWM output (name only; no pin function text provided).
23 PWM3 output Loop 1 phase 3 PWM output (name only; no pin function text provided).
24 PWM4/PWM2_L2 output Loop 1 phase 4 PWM output or loop 2 phase 2 PWM output depending on phase configuration (name only; no pin function text provided).
25 PWM1_L2 output Loop 2 phase 1 PWM output (name only; no pin function text provided).
26 VRTN_L2 input Loop 2 output voltage sense return (name only; no pin function text provided).
27 VSEN_L2 input Loop 2 output voltage sense input (name only; no pin function text provided).
28 VCC power_in Controller supply input; datasheet features list +3.3V supply voltage.
29 RCSM_L2 input Loop 2 negative current-sense input (name only; no pin function text provided).
30 RCSP_L2 input Loop 2 positive current-sense input (name only; no pin function text provided).
31 ISEN1_L2 input Loop 2 phase 1 current sense input (name only; no pin function text provided).
32 IRTN1_L2 input Loop 2 phase 1 current sense return (name only; no pin function text provided).
33 ISEN4/ISEN2_L2 input Loop 1 phase 4 or loop 2 phase 2 current sense input depending on phase configuration (name only; no pin function text provided).
34 IRTN4/IRTN2_L2 input Loop 1 phase 4 or loop 2 phase 2 current sense return depending on phase configuration (name only; no pin function text provided).
35 ISEN3 input Loop 1 phase 3 current sense input (name only; no pin function text provided).
36 IRTN3 input Loop 1 phase 3 current sense return (name only; no pin function text provided).
37 ISEN2 input Loop 1 phase 2 current sense input (name only; no pin function text provided).
38 IRTN2 input Loop 1 phase 2 current sense return (name only; no pin function text provided).
39 ISEN1 input Loop 1 phase 1 current sense input (name only; no pin function text provided).
40 IRTN1 input Loop 1 phase 1 current sense return (name only; no pin function text provided).
41 GND power_in Exposed pad ground (pin 41 on the package drawing).

Key specifications

Parameter Value
Manufacturer Infineon Technologies
Package QFN-40-EP(5x5)
Category Power Management ICs
Pins 41

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage 3.3 V +3.3V supply voltage 1
Ambient operating temperature -40 85 °C ambient operation 1

CAD (KiCad official)

  • Symbol: IR3570BMTRPBF
  • Footprint: Package_DFN_QFN:QFN-40-1EP_5x5mm_P0.4mm_EP3.6x3.6mm
  • 3D model: QFN-40-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: ir3570bmtrpbf-etched.step / ir3570bmtrpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ir3570bmtrpbf.step / ir3570bmtrpbf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Infineon Technologies datasheet (3 pp, sha256 bfb67618321ebfeb, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF